Eva and Fiona had equal amount of money. Each day, Eva spent $16 and Fiona spent $18. When Eva had $80 left, Fiona had
58 as much money left as Eva. How much money did the two girls have at first?
| |
Eva |
Fiona |
| Before |
16 u + 80 |
18 u + 50 |
| Change |
- 16 u |
- 18 u |
| After |
$80 |
$50 |
Amount that Fiona had left
=
58 x 80
= $50
The amount that Eva and Fiona had at first is the same.
18 u + 50 = 16 u + 80
18 u - 16 u = 80 - 50
2 u = 30
1 u = 30 ÷ 2 = 15
Amount that Eva had at first
= 16 u + 80
= 16 x 15 + 80
= 240 + 80
= $320
Total amount that both girls had at first
= 2 x 320
= $640
Answer(s): $640
